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NEW YORK, Jan 6- As a test of wills between OPEC nations and U.S. shale drillers fuels a global oil market slump, a brewing battle between Canadian and Saudi Arabia heavy crudes for America's Gulf Coast refinery market threatens to drive prices even lower. From the Middle East, top exporter Saudi Arabia is offering crude at discounted prices in an attempt to defend...

WASHINGTON, Dec 30- The Obama administration on Tuesday bowed to months of growing pressure over a 40- year-old ban on exports of most domestic crude, taking two steps expected to unleash a wave of ultra-light shale oil onto global markets. The Bureau of Industry and Security, or BIS, which regulates export controls, said it had granted permission to "some"...

OSLO, Dec 22- Greenhouse gas emissions by the world's top 500 companies rose 3.1 percent from 2010 to 2013, far off the cuts urged by the United Nations to limit global warming, a study showed on Monday. The top 500 firms by capitalisation accounted for 13.8 percent of world greenhouse gas emissions and 28 percent of gross domestic product in 2013, according to the...

HOUSTON, Dec 17- Motiva Enterprises has withdrawn its permit request to expand a hydrocracker and diesel hydrotreater unit at its Texas refinery, the largest in the United States. In a brief letter received by the U.S. Environmental Protection Agency earlier this month, Motiva asked, without explanation, to withdraw its August permit application for the...

Dec 16- Citgo Petroleum Corp, Venezuela's U.S. oil refining unit, has received revised bids from at least four bidders, some which have valued the company at more than $10 billion, according to three people familiar with the matter. The companies that made bids in December include Marathon Petroleum Corp, Valero Energy Corp, HollyFrontier Corp and a consortium of...

Rail safety is in focus with the boom in oil shipments and a spate of derailments across North America, and the vacancies create a safety risk, industry experts and Canada's public engineers' union say. The chair of the Transportation Safety Board, Kathy Fox, says there is risk of a spill as long as the government fails to address its oversight weaknesses and...

NEW YORK, Nov 4- At least three oil companies are still actively bidding for Citgo Petroleum Corp, the U.S. refining arm of Venezuela's PDVSA, even after the country's finance minister said that the auction was no longer going ahead, according to three people familiar with the situation. The investment bank hired by PDVSA to conduct the sale, Lazard Ltd, has not ended...

NEW YORK/ HOUSTON, Oct 9- Investment bank Lazard Ltd has asked bidders that have shown interest in buying Citgo Petroleum Corp's U.S. refineries to submit an additional round of offers, people close to the deal told Reuters this week as the sale process proceeds despite doubts. Venezuela's state-run oil company PDVSA hired Lazard to handle the sale process for...

NEW YORK, Sept 9- Venezuela's state-run oil company PDVSA is seeking preliminary offers for its U.S. unit Citgo Petroleum Corp by the end of September, a deal that could fetch up to $10 billion, according to two people familiar with the matter.